Does anybody have advice/online resources on how to get started using Mixpanel to track purchases made at given websites? I know this would involve affiliate linking, but other than this, I don't know how to begin. The project I'm working on is a React-built browser extension and online shopping tool. The extension fires on specific merchant URLs, and we've set up Mixpanel to track events such button clicks; but what we'd really like to know is how we can use Mixpanel to track whether or not a user made a purchase from a website (and when). Would this be possible, and can anyone recommend a good approach for this? Can provide more details if necessary--just tell me what you need to know.